Prob & Stats: Chapter 4 Review

True or False: If the r value = 0.80 then 80% of the change in the response variable is due to a change in the explanatory variable.

Scientists have shown the more Chuck Norris posters on a classroom wall, the better students do in the class. The response variable is: ______

Which of these is NOT a possible r value for an indirect relationship? 0.5 or -0.5 or -1

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